Stratospheric warming in Southern Hemisphere high latitudes since 1979

by Y. Hu, Q. Fu
Atmospheric Chemistry and Physics ()


In the present study, we show evidence of significant stratospheric warming over Southern Hemisphere high latitudes and large portions of the Antarctic polar region in winter and spring seasons, with a maximum warming of 78C in September and October, using satellite Microwave Sounding Unit observations for 19792006. It is found that this warming is associated with increasing wave activity from the troposphere into the stratosphere, suggesting that the warming is caused by enhanced wave-driven adiabatic heating. We show that the stratospheric warming in Southern Hemisphere high latitudes has close correlations with sea surface temperature (SST) increases, and that general circulation model simulations forced with observed time-varying SSTs reproduce similar warming trend patterns in the Antarctic stratosphere. The simulated stratospheric warming is closely related to increasing wave activity in the Southern Hemisphere. These findings suggest that the stratospheric warming is likely induced by SST warming. As SST warming continues as a consequence of greenhouse gas increases due to anthropogenic activity, the stratospheric warming would also continue, which has important implications to the recovery of the Antarctic ozone hole.

Cite this document (BETA)

Page 1
Page 2

Readership Statistics

17 Readers on Mendeley
by Discipline
by Academic Status
18% Researcher (at a non-Academic Institution)
18% Researcher (at an Academic Institution)
18% Ph.D. Student
by Country
6% Germany
6% United States
6% Korea (South)

Sign up today - FREE

Mendeley saves you time finding and organizing research. Learn more

  • All your research in one place
  • Add and import papers easily
  • Access it anywhere, anytime

Start using Mendeley in seconds!

Sign up & Download

Already have an account? Sign in